NEC MultiSync FP1350 Service Manual
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NEC MultiSync FP1350 Service Manual

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PART NO. 599910516

SERVICE MANUAL

   
MultiSync
FP1350
COLOR MONITOR
MODEL FP1350-1 (B)
NEC Corporation
200007
08109312

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  • Page 1: Service Manual

    PART NO. 599910516 SERVICE MANUAL     MultiSync FP1350 COLOR MONITOR MODEL FP1350-1 (B) NEC Corporation 200007 08109312...
  • Page 2 WARNING The SERVICE PERSONNEL should have the appropriate technical training, knowledge and experience necessary to: • Be familiar with specialized test equipment, and • Be careful to follow all safety procedures associated with high voltage CRT circuit designs to minimize danger to themselves and their coworkers. To avoid electrical shocks, this equipment should be used with an appropriate power code and be connected only to a properly grounded AC outlet.
  • Page 3 PRODUCT SAFETY CAUTION 1. When parts replacement is required for servicing, always use the manufacturer's specified replacement. 2. Comply with all caution and safety-related notes on the product display chassis and picture tube. 3. When replacing the component, always be certain that all the components are put back in the place. 4.

  • Page 4: Table Of Contents

    CONTENTS Page No. SPECIFICATIONS ....................1-1 USER'S MANUAL ....................2-1 SERIAL NUMBER INFORMATION ............... 3-1 ASSEMBLY ......................4-1 ADJUSTMENT PROCEDURES ................5-1 INSPECTION ......................6-1 TROUBLE SHOOTING ..................7-1 CIRCUIT DESCRIPTION ..................8-1 REPLACEMENT PARTS LIST ................9-1 BLOCK DIAGRAMS .................... 10-1 SCHEMATIC DIAGRAMS ......

  • Page 5: Specifications

    1152 x 870 @ 55 to 125 Hz 1280 x 1024 @ 55 to 107 Hz 1600 x 1200 @ 55 to 92 Hz ..…..NEC cites recommended resolution 1792 x 1344 @ 55 to 81 Hz a 85 Hz for optimal display...

  • Page 6: User's Manual

    USER'S MANUAL Only the point is mentioned Contents FP Series monitor box* should contain the following: • MultiSync FP Monitor with tilt/swivel base Series MultiSync FP ™ (JC-1946UMW) or MultiSync FP (JC-2241UMW) ™ 1350 • Power Cord • Signal Cable •...

  • Page 7: Quick Start

    Quick Start ® To attach the MultiSync FP Series monitor to your system,follow these instructions: 1. Turn off the power to your computer and MultiSync monitor. If you are using the signal cable, continue to Step 2. If you are using a BNC cable, please skip to Step 3. NOTE: BNC cables may be purchased at your local electronics store.
  • Page 8 ® 4. Connect one end of the power cord to the MultiSync FP Series monitor and the other end to the power outlet (Figure D.1). 5. Turn on the monitor (Figure E.1) and the computer. 6. The Factory Setting for your monitor is set for D-SUB installation. If you are using a BNC cable connection, push the BNC/D-SUB button on the front of the monitor (Figure E.1) to switch settings.
  • Page 9 ® If your computer is equipped with USB and uses the Windows 98 operating system and you want to operate the monitor’s user controls using your system, you can install USB support by using the following procedure. To attach the USB port on your MultiSync FP Series monitor to a USB port on your system: 1.
  • Page 10 Controls (On-Screen Manager) control buttons on the front of the monitor function as follows: Main Menu Sub-Menu EXIT Exits the OSM menu. Exits to the OSM controls main menu. CONTROL Moves the highlighted area up/down to Moves the highlighted area up/down to select one of the controls.
  • Page 11 Kelvin to Custom. Red, Green, Blue : NEC’s AccuColor Control System decreases or increases the monitor’s red, green, or blue color guns depending upon which is selected. The change in color will appear on screen and the direction (decrease or increase) will be shown by the bars.
  • Page 12 While in the sub-menus(GLOBALSYNC, TOP LEFT, TOP RIGHT, BOTTOM LEFT or BOTTOM RIGHT), use the -/+ control buttons to fine tune the GlobalSync corrections. Note: NEC recommends that you perform GlobalSync correction while running a typical application such as a spreadsheet or text document.
  • Page 13 OSM TURN OFF: The OSM menu will stay on as long as it is in use. In the OSM Turn Off sub-menu, you can select how long the monitor waits after the last touch of a button for the OSM menu to disappear.

  • Page 14: Recommended Use

    Recommended Use Safety Precautions and Maintenance FOR OPTIMUM PERFORMANCE, PLEASE NOTE THE FOLLOWING WHEN SETTING UP AND USING THE ® MULTISYNC FP Series COLOR MONITOR: • DO NOT OPEN THE MONITOR. There are no user serviceable parts inside and opening or removing covers may expose you to dangerous shock hazards or other risks.
  • Page 15 • If the monitor has been dropped or the cabinet damaged. • If the monitor does not operate normally by following operating instructions. • Allow adequate ventilation around the monitor so that heat can properly dissipate. Do not block ventilated openings or place the monitor near a radiator or other heat sources. Do not put anything on top of monitor.
  • Page 16 • Use a document holder placed close to the screen. • Position whatever you are looking at most of the time (the screen or reference material) directly in front of you to minimize turning your head while you are typing. •...
  • Page 17 Features Flat Aperture Grille CRT: Delivers an unparalleled viewing experience with a virtually flat image, eliminating distortion and reducing glare so that what you see on-screen is what you get on your printed output. The striped phosphor alignment of the CRT delivers superior vertical definition with improved brightness for more uniform image contrast.
  • Page 18 ® GlobalSync /Corner Purity Control: NEC’s unique design automatically elimi-nates picture impurities that may result from stray magnetic fields (including the earth’s permanent magnets, etc.) and now allows you to easily adjust impurities in the four corners of your monitor.

  • Page 19: Troubleshooting

    Troubleshooting No picture • Display card should be completely seated in its slot. • Power Button and computer power switch should be in the ON position. • Signal cable should be completely connected to display card/computer. • Check connector for bent or pushed-in pins. •...

  • Page 20: Serial Number Information

    SERIAL NUMBER INFORMATION Refer to the serial number information shown below. EX.) SERIAL NUMBER LABEL Model : FP1350-1 SERIAL NO. : g g g g g g g g g Manufactured Year : ( Last digit ) Manufactured Month : January to September 1 to October...

  • Page 21: Assembly

    ASSEMBLY • Before you disassemble the set, turn off power and pull out the power plug. • Use the appropriate screwdrivers that first the screws. If you use screwdriver that does not fit, you may break the screws. • Disassembly is the opposite process of assembly. •...
  • Page 22 REMARK SYMBOL Clamp the EMC COIL with CLAMPER,WIRE. EMF COIL EMC COIL’s Green wire Green REMARK SYMBOL Clamp the EMC COIL with CLAMPER,WIRE. Green EMC COIL’s wire Green...
  • Page 23 REMARK SYMBOL Clamp the DEG COIL with CLAMPER,WIRE. REMARK SYMBOL Clamp the DEG COIL with (134) CLAMPER,WIRE. (134)
  • Page 24 REMARK SYMBOL Clamp the DEG COIL’s wire with CLAMPER,WIRE as per sketch. <SIDE VIEW> SHIELD DEGAUSS COIL DEG COIL’S wire CORNER COIL DEGAUSS COIL CORNER COIL Clamp the DEG COIL’S wire and the CORNER COIL. REMARK SYMBOL Mount the EMF PWB. 121E CN-RR CN-LL...
  • Page 25 REMARK SYMBOL Clamp the connector. DEG COIL EMF COIL EMC COIL EMC COIL REMARK SYMBOL COIL FORMING -UPPER SIDE- Don’t cross these areas. (DEGAUSS COIL and CORNER COIL)
  • Page 26 REMARK SYMBOL COIL FORMING -LOWER SIDE- Don’t cross these areas. (DEGAUSS COIL and CORNER COIL) REMARK SYMBOL Mount LEAF SPRING (CRT) and C’ LEAF SPRING to the PLATE,SHIELDING. D’ Mount CN-CE and COIL E’ SPRING to the PLATE, SHIELDING. EMC COIL’s wire pass through under the LEAF SPRING.(both sides.) B’...
  • Page 27 REMARK SYMBOL Dgauss the PLATE SHIELDING (CRT) ASSY. REMARK SYMBOL Insert CN-DY and CN-SC1 to CRT’s DY. Note: Don’t pull out CN-DY if you insert it once. CN-DY DY’s hook SAFETY Tie CN-DY and DY’s wirs with BAND (L=100) as persketch. SAFETY Pass through the CN-ZDY bet ween DY and DY’s connectors.
  • Page 28 REMARK SYMBOL Mount PUSH BUTTON (CONTROL) to CABINET Check to ensure the lead is caught or binding FRONT ASSY. against the bottom surface of the CRT. Peel off the sheet of CONTROL PANEL and attach PUSH 121D BUTTON (CONTROL) to CABINET FRONT ASSY.
  • Page 29 REMARK SYMBOL Screw VIDEO PWB ASSY to the 121A PLATE, SHIELDING (BOTTOM). 114 (2P) Screw PLATE, SHIELDING (VIDEO) to the VIDEO PWB ASSY. CN-SG Insert BUSH, INSULATOR, CLAMPER, WIRE and EDGE, SADDLE to the PLATE, SHIELDING (BOTTOM). CN-HT Insert CN-SG and CN-HT to the VIDEO PWB ASSY.

  • Page 30: Video Pwb Assy

    REMARK SYMBOL 101 (4P) Clamp CN-P with the EDGE (*1) SADDLE. EDGE SADDLE 114 (2P) CN-P Back side view 122B G’ (*1) Screw the safety earth terminal to the BRACKET (VIDEO, A) CN-P 122A SAFETY After the VIDEO PWB ASSY mount the PWB FRAME, connect the CN-SW1.

  • Page 31: Clamper, Wire

    REMARK SYMBOL Don’t touch copper wire of 122C IC4H1. (Because copper wire is easy to break.) 122C REMARK SYMBOL Clamp CN-CU with the CLAMPER,WIRE as follows. CN-PU CN-P SCREEN, FOCUS CN-PU 4-11...

  • Page 32: Clamper, Wire

    REMARK SYMBOL Clamp CN-CL and CN-LEB with the CLAMPER,WIRE (bottom side of the OUTER SHIELDING. OUTER SHIELDING CLAMPER,WIRE After mounting the CABINET FRONT ASSY to the FRAME CN-LEB CN-SC1 ASSY, SCREW the CASE, SHIELDING (CRT, F). (To avoid broken CRT neck.) Z’...
  • Page 33 REMARK SYMBOL Clamp the leads of FBT with the EDGE SADDLE. CNDY CNSC1 EDGE CN-CL SADDLE CN-EMF CN-K CN-PM CN-DF CLAMPER, I’ H’ CN-CR J’ WIRE BLAC CN-HT Insert the Focus Lead to the CRT L’ Socket. M’ Push in Focus lead so that the Line is all in the CRT Socket.
  • Page 34 REMARK SYMBOL REMARK SYMBOL 4-14...
  • Page 35 REMARK SYMBOL Mount the ANODE CLAMPER to ANODE LEAD. (True up the upper ANODE ANODE ANODE CLAMPER CLAMPER and adove WHITE CLAMPER MARK.) WHITE MARK SAFETY Lower edge Within white mark YELLOW Upper edge MARK WHITE ANODE MARK CLAMPER REMARK SYMBOL CLAMPER,WIRE should be partially cut away as atching area...

  • Page 36: Def Pwb Assy

    REMARK SYMBOL Screw the terminal from HEAT SINK with DEF PWB ASSY. terminal DEF PWB ASSY Within this area REMARK SYMBOL Connect the CN-SC2 to the CNHSC and CNVSC. (CN-SC2) R’ P’ White - CNHSC (White) 101 (2P) Yellow - CNVSC (Yellow) N’...
  • Page 37 REMARK SYMBOL Clamp the wires. SAFETY ANODE LEAD CASE,SHIELDING (CRT,F) CN-ZDY CN-VDY CN-HDY CN-SC1 CN-HDY CN-VDY CLAMPER,WIRE REMARK SYMBOL Clamp the wires. (SIDE VIEW) SAFETY CN-CR CN-K CN-EMF DEF PWB ASSY CLAMPER,WIRE CN-DF CN-PM CN-CL BRACKET (L) CN-EMF CN-EMF CN-PM CN-PM CN-CL CN-K...
  • Page 38 REMARK SYMBOL Connect the CN-SC1 to the CN- SC2. (BACK SIDE) Clamp the wires. CN-ASD CN-AF CLAMPER,WIRE CASE,SHIELDING (CRT,F) CN-ZDY CN-SD CN-EMF CRT PWB CN-SC1 CN-EMF CN-SC2 CN-VSC CN-ASD CN-HSC CN-AF clamp REMARK SYMBOL Clamp the ANODE LEAD with the CLAMPER WIRE (H19.5). SAFETY Don’t change the from the LEAF, SPRING.
  • Page 39 REMARK SYMBOL 4-19...
  • Page 40 SYMBOL CODE DESCRIPTION REMARKS 2E853031 CHEXIBS(CUP)*3*8*15CF 2E853021 CHEXISS(CUP)*3*8*15BF 24851731 SCREW, FT*4*16*15BF(S) 24852341 SCREW, WM*4*10*15CF(S) 25852641 SCREW, SPECIAL(5*25) 25284561 CLAMPER, WIRE 25284041 CLAMPER, WIRE 25283411 CLAMPER, WIRE 25283651 CLAMPER, WIRE 25284061 CLAMPER, WIRE 25284521 CLAMPER, WIRE(D.G.COIL) 25283111 CLAMPER, WIRE(H19.5) 840E6C01 VIDEO PWB ASSY 843D3B01 SUB PWB ASSY 840E6D01...
  • Page 41 73891360 WIRE CONNECTOR CN-SG CN-SG 73891333 WIRE CONNECTOR CN-HT CN-HT 2E430491 PWB FRAME 2E548231 BRACKET(VIDEO, B) 25283461 EDGE SADDLE 744E0311 CASE, SHIELDING(CRT, F) 2E430821 REVOLVING STAND(B) ASSY 25430811 REVOLVING STAND(T) 2E426391 SPINDLE 2E548061 CHASSIS BASE 744E0441 PLATE. SHIELDING(BOTTOM) 2E548141 BRACKET(R.B) 2E548131 BRAKET(L.B) 25280851...

  • Page 42: Adjustment Procedures

    ADJUSTMENT PROCEDURES Application These specifications outline the adjustment procedures for Model FP1350-1 22 inch color monitor. Model : FP1350-1 Destination: Europe Standard Adjustment Conditions Standard Adjustment Conditions 1. Power Supply Voltage AC 100V±5% 50/60Hz or AC 120V±5% 60Hz or AC 220V±5% 50Hz 2.
  • Page 43 3) To degauss panel surface Switch on the degaussing coil, keep a distance between panel surface and degaussing coil to more than 50 cm. Move the degaussing coil vertically near the panel surface. Keep distance of panel surface and degaussing coil to more than 15 mm. Horizontal Vertical 4) Degaussing method of CRT surface...
  • Page 44 6) When aperture grille get entangled while degaussing, receive the signal of 1dot alternate pattern and degauss again. If aperture grille remain entangled, vibrate from side. 5. Signal Generator LVG-1603 is recommended for signal generator. Use calibrated signal generators. However, use VG-819 in focus regulation. Note) Adjustment timings are timing tables and are not programmed timing.
  • Page 45 7-4. FACTORY MODE SETTING 7-4-1 FACTORY MODE: OFF → ON 1) Open the MENU(U),TAG7 - "DISPLAY MODE"(As below) 2) Press "RESET" and "t","6" switch at once. 3) A "WARNING" will be displayed, then press "PROCEED" switch once. 4) LED indicator light turn to Yellow from Green. 7-4-2 FACTORY MODE ON →...
  • Page 46 7-6. How to turn off OSM MENU * To close the Menu Press "EXIT" switch while MENU (U) or MENU (S) is displayed TAG is highlighted: 1 time. ITEM is highlighted: 2 times. entering SUB MENU: 3 times * To close MENU temporarily. Press "PROCEED"...
  • Page 47 7-10. Structure of OSM Menu (User) TAG 1) Brightness & Contrast TAG 2) Size & Position TAG 3) Color Control / AccuColor TAG 4) Geometry PRESET No.1 9300K No.2 8200K No.3 7500K No.4 6500K No.5 5000K TAG 5) Tools 1 ITEM 5-1) Moire Canceler...
  • Page 48 ITEM 5-2) Basic Convergence ITEM 5-3) Area Convergence The second OSM appears on the top center area when TOP HORIZONTAL or TOP VERTICAL is selected, and, it appears on the bottom center area when BOTTOM HORIZONTAL or BOTTOM VERTICAL is selected. ITEM 5-4) Corner Correction ITEM 5-5) Linearity ITEM 5-6-1) GlobalSync 1...
  • Page 49 ITEM 5-7) Sharpness ITEM 5-8) Factory Preset TAG 6) Tools 2 ITEM 6-1) Language ITEM 6-2) OSM Position ITEM 6-3) OSM Turn Off ITEM 6-4-1) OSM Lock Out 1 ITEM 6-4-2) OSM Lock Out 2...
  • Page 50 ITEM 6-5) IPM Off Mode Control Function ITEM 6-6) Edge Lock ITEM 6-7) Refresh Notifier TAG 7) Information ITEM 7-1) Display Mode ITEM 7-2) Fitness Tips ITEM 7-3) Monitor Info.
  • Page 51 7-11. Structure of OSM Menu (Service) [TAG 1 (S)] [TAG 2 (S)] [TAG 3 (S)] [TAG 4 (S)] [TAG 5 (S)] [TAG 6 (S)] [TAG 7 (S)] [TAG 8 (S)] 5-10...
  • Page 52 [TAG 9 (S)] [TAG A (S)] PRESET No.1 9300K No.2 8200K No.3 7500K No.4 6500K No.5 5000K [TAG B (S)] [TAG C (S)] [TAG D (S)] [TAG E (S)] 5-11...

  • Page 53: Adjustment Items

    ADJUSTMENT ITEMS [A] Pre-Adjustment 1. High-Voltage Adjustment (When circuit board energizing is examined.) [B] Initial Settings 1.Control Setting [C] Main Adjustment 1. Raster Position 1-1. Horizontal Raster Position 1-2. Vertical Raster Position 2. Linearity Adjustment 2-1. Horizontal Linearity Adjustment 2-2. Vertical Linearity Adjustment 3.
  • Page 54 [A] Pre-Adjustment 1. High-Voltage Adjustment Signal 3 (VGA480) All Black Initial Setting SCREEN VR: Fully counterclockwise (MIN) VR5T1: Fully counterclockwise (MIN) This adjustment is made when circuit board energizing is examined. 1) Receive signal 3. 2) Adjust VR5T1 slowly so that high voltage is 27kV±0.2kV. After adjusting, seal VR5T1 with a silicon adhesive and cap (Part No.
  • Page 55 3) Rough Adjustment before warm up Signal: No. 7 (VESA350@85) All White Signal: No. 13 (MAC832*624) All White Signal: No. 27 (H.HOLD 2(115k) fH=110kHz) All Black Signal: No. 29 (V.RASTER) All White a. Rough adjustment of horizontal raster position 1) Receive signal 27. 2) Adjust SCREEN VR on the FBT so that the back raster just appears.
  • Page 56 d. Screen VR Adjustment 1) Display the self test screen. 2) Adjusted with the screen VR so that the voltage of the video PWB TP-ABL may become 4.64 (V) <ABL<8.14 (V). 1. Raster Position 1-1. Horizontal Raster Position Signal: No. 27 (H.HOLD 2(115k)) All Black 1) Receive signal 27.
  • Page 57 1-2. Vertical Raster Position Signal: No. 29 (V.RASTER) All White 1) Receive signal 29. 2) Menu (S), TAG2 data on ”V.LINEARITY" are 90, and it confirms that data on "V.LIN.BALANCE" are 128. * When data are not 90 and 128, Open TAG2 ”V.LINEARITY" and TAG2 "V.LIN.BALANCE", and set up data.
  • Page 58 2. Linearity Adjustment 2-1. Horizontal Linearity Adjustment Signal: No. 17 (1024*768@75Hz) Cross hatch pattern Signal: No. 23 (1600*1200@85Hz) Cross hatch pattern * Hereunder integrate is done when value of control former "H.LINEARITY 1:60" and "H.LINEARITY 2:180" come off the value of standardized. 1) Receive signal 23.
  • Page 59 3. Horizontal / Vertical Maximum Size Adjustment 3-1. Horizontal Maximum Size Adjustment Signal: No. 13 (MAC832*624) All white Signal: No. 35 (H.SIZE) All white 1) Receive signal 13. 2) Open Menu (S), TAG2 "V.SIZE" and adjust "+", "-" SW so that the vertical size is 297±5 mm. If not able to set vertical size, open Menu (S), TAG2 "V.SIZE MAX", adjust the vertical size.
  • Page 60 4. Deflection Distortion Adjustment Environment: Adjustment Magnetic Field by three dimension magnetic field system.Turn the CRT face to east and degauss the monitor using an external degaussing coil. * When distortion amount is confirmed in the hereunder adjusted, It is made the condition that items of the menu tag 3 or 4 is select, or PROCEED is used in the condition that items is select, and turn off condition the OSM.
  • Page 61 7) Push "EXIT" SW. Fig 4-2 Picture Tilt 4-3. Side Pincushion Balance Adjustment Signal: No. 33 (788*1200@75Hz) All white 1) Open Menu (S), TAG3 "SIDE PIN BAL". Adjust "+", "-" SW so that the difference of X and X is equal ( maximum 1.0 mm). Fig 4-3 Side Pincushion Balance 5-20...
  • Page 62 4-4. Side Pincushion Adjustment Signal: No. 33 (788*1200@75Hz) All white 1) Open Menu (S), TAG3 "SIDE PIN". Adjust "+", "-" SW so that the side pincushion distortion is small ( maximum ± 0.5 mm). Fig 4-4 Side Pincushion 4-5. Trapezoid Distortion Adjustment Signal: No.
  • Page 63 4-7. Horizontal W-wave Distortion Adjustment Signal: No. 33 (788*1200@75Hz) All white 1) Open Menu (S), TAG3 " SIDE WING ". Adjust "+", "-" SW so that the side vertical line is about straight. (maximum ± 0.5 mm) Center line Fig 4-7 Horizontal W-wave Distortion 4-8.
  • Page 64 4-9. Corner Distortion Adjustment Signal: No. 33 (788*1200@75Hz) All white Do this integrate when distortion is adjust in the top or the bottom after the integrate to 4-8 sections. 4-9-1. Top Corner Distortion Adjustment 1) Open Menu (S), TAG4 "CORNER TOP". Adjust "+", "-"...
  • Page 65 4-9-4 Bottom Corner Balance Adjustment 1) Open Menu (S), TAG4 "CORNER BOTTOM BAL". Adjust "+", "-" SW so that the bottom corner forms a right angle. (maximum ± 1.0 mm) Fig 4-13 Bottom Corner Balance 4-10. Overall Distortion Adjustment Signal: No. 33 (788*1200@75Hz) All white 1) Confirm that adjustment on steps 4-2 to 4-9 meets the specifications.
  • Page 66 5. Preset Picture Size and Position Adjustment Signal: No. 3 (VGA480) No.14 (800*600@85Hz) No. 6 (MAC 640*480) No.17 (1024*768@75Hz) No.12 (VESA 640*480@85Hz) No.21 (1280*1024@75Hz) No.13 (MAC 832*624) No.22 (1600*1200@75Hz) No.23 (1600*1200@85Hz) Video: All White 1) Receive signal 3. 2) Open Menu (S), TAG2 "H.POSITION", "V.POSITION", "H.SIZE", "V.SIZE". 3) Adjust the picture size and position as listed below by "+", "-"...
  • Page 67 6) For the signals below, picture size and position are calculated from above adjustment data and data are written into EEPROM. Preset Signal: No. 1 (VGA350) No.10 (XGA) No. 2 (VGA400) No.11 (VESA800*600@75Hz) No. 4 (640*400@70Hz) No.15 (1024*768@70Hz) No. 5 (800*600@60Hz) No.16 (1280*1024@60Hz) No.
  • Page 68 6. Auto Adjustment (Size / Position / Distortion) 6-1. Outline explanation 1) Adjustment for Size, Position and Distortion for all preset signals can be done by selecting only one specified signal. Accordingly, following adjustments can be done automatically by using this jig. ·...

  • Page 69: Signal Cable

    6-3. Connection Target Monitor Signal Cable from target monitor IBM PC or compatible Video Signal Generator Signal Cable Printer Cable Program Disk AUTO ADJ I/F JIG AUTO ADJ PROGRAM PART No. 599910401(120V) (for A Ver.) PART No. 599910403 Fig 6-2 Connection 1) Connect signal cable from target monitor to Auto ADJ I/F jig.
  • Page 70 6-4. Operation 1) Programming flow chart START Read EEPROM data ROM READ ? (Y/N) or END Read parameter values from disk (1) Size / Position (2) Distortion (3) END Fig 6-3 Programming flow chart of service adjustment 6-5. Adjustment procedures 1) Start the program a.
  • Page 71 2) Adjustment procedure Adjust monitor in following steps. a. Distortion adjustment b. H. SIZE(MAX) adjustment c. V. SIZE(MAX) adjustment d. Size / Position adjustment a. Distortion adjustment a-1. The following menu B will appear on screen. Size/Position Distortion Manual Adjust Program SPSC2.EXE Version 1.00 MODEL: 1 : Size / Position FP1350-1...
  • Page 72 b. H. SIZE(MAX) adjustment b-1. Select “Size / Position” while menu B is displayed, and push “RETURN” key. b-2. Input a signal displayed on the screen. (If signal is not displayed on the screen, use a signal indicated horizontal maximum size adjustment section in the service manual.) b-3.
  • Page 73 b-4. As following menu E appear on monitor screen, select “H. SIZE” and push “RETURN” key. Size/Position Adjust MODEL: FP1350-1 SIGNAL :H_MAX 1 : H. POSI 2 : V. POSI 3 : H. SIZE 4 : V. SIZE 5 : H. SIZE(MAX) 6 : END (Menu E) b-5.
  • Page 74 Function of each key is as follows “1” : data value decreases by 1 (H. SIZE becomes smaller) “4” : data value decreases by 5 (H. SIZE becomes smaller) “7” : data value decreases by 10 (H. SIZE becomes smaller) “3”...
  • Page 75 d. Size / Position adjustment d-1. Open menu B, “Size / Position” and push “RETURN” key. d-2. As following menu D appears on monitor screen, select “80: TOTAL1 (1024*768(75))” and push “RETURN” key. d-3. As following menu E appears on monitor screen, select “H. POSI” and push “RETURN” key. d-4.
  • Page 76 7. Video Amplitude Adjustment Signal: No. 23 (1600*1200@85Hz) Window pattern (H:33% V:33%) 7-1. Settings NOTE: Degauss the monitor using an external degaussing coil. 1) Confirm that the video signal of generator is as follows. Video: Analog 0.7Vp-p ± 0.01V p-p (terminated 75 ohms ± 1 %) 2) Receive signal No.23 (All White), confirms that there is screen size of hereunder span.
  • Page 77 45± Vp-p Fig 7-1 Wave form of RK, GK, BK 7-3. OSM Gain Adjustment Signal: No.23 (1600*1200@85Hz) All black 1) Receive signal 23. 2) Open Menu (S), TAG7 “OSM COLOR GAIN”. 3) Adjust “+”, ”-” SW so that OSM video amplitude at TP-G on the CRT PWB is set to 31 (±4) Vp-p. 4) Push "EXIT"...
  • Page 78 7-5. Contrast Tracking Adjustment Signal: No.23 (1600*1200@85Hz) Window Pattern (H: 33% V:33%) 1) Receive Signal 23. 2) Open Menu (S), TAG8 “CONT MAX/MIN”. Adjust "+" SW so that the contrast is max. 3) Setting modes x, y, Y at the color analyzer, measures the window color temperature. This measurement determines x=x1, y=y1.
  • Page 79 7-8.Maximun Brightness adjustment Signal: No.23 (1600*1200@85Hz) Window Pattern (H:33% V:33%) 1) Receive Signal 23. 2) Open Menu (S), TAG A "Color Preset No.1 9300K ". 3) Open Menu (S), TAG A “CONT.MAX.ADJ”. Adjust "+", "-" SW so that the “window brightness” is 140(+0, -1) cd/m 4) Open Menu (S), TAG D “CONTRAST PRESET”...
  • Page 80 7) Open Menu (S), TAG1 "H.D.FOCUS", and confirms that data are "210". * When data are different, a " H.D.FOCUS " will be displayed, adjusted to "210". 8) "EXIT" Switch is pushed, and data is saved in the memory. 9) Receive Signal 31 (1600*1200 (60Hz) cross-hatch pattern (green monochrome)) by BNC input, Menu (U), TAG1 of "CONTRAST"...
  • Page 81 9. Purity Signal: No. 22 (1600*1200@75Hz) All green Adjustment Magnetic Field by three dimension magnetic field system. Setting of the Landing meter (KLD-01 made by KAMAYA) Volt: 2.0V Time: 50ms GAIN: 7 * Adjust this monitor after a minimum of 90 minutes to allow unit to reach ambient operating temperature. (Use the Self Test screen.
  • Page 82 10. Convergence Adjustment Signal: No.33 (788*1200 @ 75Hz) Cross Hatch Pattern and frame pattern Environment: Adjustment Magnetic Field by three dimension magnetic field system. Turn the CRT face to east and degauss the monitor using external differential coil. Receive Signal 33 (Cross Hatch Pattern and frame Pattern). It confirms that screen amplitude and screen position are following value.
  • Page 83 c. Open Menu(S), TAG C "H.CONVER SAW T", and adjusted so that misconvergence of the horizontal direction may become the minimum in D of the Fig 10-7 and E and F point. Open Menu(S), TAG C "V.CONVER SAW T", and adjusted so that misconvergence of the vertical direction may become the minimum.
  • Page 84 f. Open Menu(S), TAG C "H.CONVER PARA B", and adjusted so that misconvergence of the horizontal direction may become the minimum in M of the Fig 10-7 and N and O point. Open Menu(S), TAG C "V.CONVER PARA B", and adjusted so that misconvergence of the vertical direction may become minimum.
  • Page 85 ±1.0 396±1.0mm Fig.10-6 The value of Convergence Fig.10-7 Adjustment position of Convergence 5-44...
  • Page 86 X X X X -COIL -COIL -COIL -COIL V V V V B-BOW Ring B-BOW Ring B-BOW Ring B-BOW Ring 4-pole magnet 4-pole magnet 4-pole magnet 4-pole magnet 6-pole magnet 6-pole magnet 6-pole magnet 6-pole magnet X X X X -COIL -COIL -COIL...
  • Page 87 Xv-Coil -Slider Blue Bow Rings Fig. 10-9 The move of the R line and the B line by the revision VR, Coil, the slider. 5-46...
  • Page 88 11. Auto Adjustment Signal: No. 3 (VGA480) All White Signal: No. 23 (1600*1200@85Hz) All White When this adjustment is done, picture size, linearity, picture position, picture deformation, video adjustment are to be finished. 1) Receive signal 3 (VGA480) All White, and confirm that the picture size and picture position is as follows. Open Menu (S), TAG D "AUTO ADJUT L", and push "Proceed"...
  • Page 89 [D] Reference 1. Adjustment Signal Signal Name SYNC Form SYNC Polarity (H/V) ------------------------------------------------------------------------------------------------------------------------ VGA 350 Separate Pos/Neg VGA 400 Separate Neg/Pos VGA 480 Separate Neg/Neg 640*400@70Hz Separate Neg/Neg 800*600@60Hz Separate Pos/Pos MAC 640*480 Composite + Sync on G Neg/Neg VESA 350@85Hz Separate Pos/Neg VESA 400@85Hz...
  • Page 90 Signal Name SYNC Form SYNC Polarity (H/V) ------------------------------------------------------------------------------------------------------------------------ USER1 PC98 1120*750(1) Separate Pos/Pos USER2 VESA 800*600@56Hz Separate Pos/Pos USER3 VESA 1024*768@60Hz Separate Neg/Neg USER4 VESA 800*600@72Hz Separate Pos/Pos USER5 1120*750@60Hz Separate Neg/Neg USER6 640*480@100Hz Separate Neg/Neg USER7 XGA-2 1024*768@72Hz Separate Neg/Neg USER8 1024*768@80Hz...
  • Page 91 2. Timing of Adjustment Signal Signal Timing Charts SEPARATE SYNC VIDEO HORIZONTAL A: H.Total Time B: H.Sync Time C: H.Back Porch D: H.Addr Time VIDEO E: H.Front Porch VERTICAL Sync Polarity: Positive/Negative COMPOSITE SYNC VIDEO HORIZONTAL O: V.Total Time P: V.Sync Time Q: V.Back Porch VIDEO R: V.Addr Time...
  • Page 92 TIMING NAME 1 VGA350 2 VGA400 3 VGA480 4 640*400@70Hz 5 800*600@60 Pixel Clock 28.322[MHz] 28.322[MHz] 25.175[MHz] 25.175[MHz] 40.000[MHz] H.Frequency 31.469[kHz] 31.469[kHz] 31.469[kHz] 31.467[kHz] 37.879[kHz] V.Frequency 70.086[Hz] 70.087[Hz] 59.940[Hz] 70.086[Hz] 60.317[Hz] H.Tortal Time 900 [dots] 31.778 [us] 900 [dots] 31.777 [us] 800 [dots] 31.778 [us] 800 [dots]...
  • Page 93 TIMING NAME 11 VESA800*600@75Hz 12 VESA640*480@85Hz 13 MAC832*624 14 VESA800*600@85Hz 15 VESA1024*768@70Hz Pixel Clock 49.500[MHz] 36.000[MHz] 57.283[MHz] 56.250[MHz] 75.000[MHz] H.Frequency 46.875[kHz] 43.296[kHz] 49.725[kHz] 53.674[kHz] 56.476[kHz] V.Frequency 75.000[Hz] 85.008[Hz] 74.550[Hz] 85.061[Hz] 70.069[Hz] H.Tortal Time 1056 [dots] 21.333 [us] 832 [dots] 23.111 [us] 1152 [dots] 20.111 [us] 1048 [dots]...
  • Page 94 TIMING NAME 21 VESA1280*1024@75Hz 22 VESA1600*1200@75Hz 23 VESA1600*1200@85Hz 24 VESA1920*1440@75Hz 25 H.HOLD1 Pixel Clock 135.000[MHz] 202.500[MHz] 229.500[MHz] 297.000[MHz] 27.900[MHz] H.Frequency 79.976[kHz] 93.750[kHz] 106.250[kHz] 112.500[kHz] 31.000[kHz] V.Frequency 75.025[Hz] 75.000[Hz] 85.000[Hz] 75.000[Hz] 54.963[Hz] H.Tortal Time 1688 [dots] 12.504 [us] 2160 [dots] 10.667 [us] 2160 [dots] 9.412 [us] 2640 [dots]...
  • Page 95 TIMING NAME 31 VESA1600*1200@60Hz 32 VESA1280*1024@85Hz 33 788*1200@75 34 812*1024@85 35 H.SIZE Pixel Clock 162.000 [MHz] 157.500[MHz] 99.900[MHz] 99.900[MHz] 229.500[MHz] H.Frequency 75.000 [kHz] 91.146[kHz] 93.720[kHz] 91.160[kHz] 106.250[kHz] V.Frequency 60.000 [Hz] 85.024[Hz] 74.980[Hz] 85.040[Hz] 85.000[Hz] H.Tortal Time 2160 [dots] 13.333 [us] 1728 [dots] 10.971 [us] 1066 [dots]...
  • Page 96 USER1 USER2 USER3 USER4 USER5 TIMING NAME PC98 1120*750(I) VESA800*600@56Hz VESA1024*768@60Hz VESA800*600@72Hz 1120*750@60Hz Pixel Clock 47.846[MHz] 36.000[MHz] 65.000[MHz] 50.000[MHz] 78.431[MHz] H.Frequency 32.861[kHz] 35.156[kHz] 48.363[kHz] 48.077[kHz] 50.020[kHz] V.Frequency 78.993[Hz] 56.250[Hz] 60.004[Hz] 72.188[Hz] 60.048[Hz] H.Tortal Time 1456 [dots] 30.431 [us] 1024 [dots] 28.444 [us] 1344 [dots] 20.677 [us]...
  • Page 97 USER11 USER12 USER13 USER14 USER15 TIMING NAME 640*480@140Hz VESA1600*1200@60Hz VESA1152*864@85Hz 1024*768@100Hz 800*600@120Hz Pixel Clock 58.800[MHz] 162.000[MHz] 121.500[MHz] 108.390[MHz] 83.250[MHz] H.Frequency 70.000[kHz] 75.000[kHz] 77.094[kHz] 80.647[kHz] 78.835[kHz] V.Frequency 140.000[Hz] 60.000[Hz] 84.999[Hz] 100.059[Hz] 121.659[Hz] H.Tortal Time 840 [dots] 14.286 [us] 2160 [dots] 13.333 [us] 1576 [dots] 12.971 [us] 1344 [dots]...
  • Page 98 USER21 USER22 USER23 USER24 USER26 TIMING NAME VESA1792*1344@75Hz VESA1600*1200@80Hz 1024*768@120Hz 800*600@160Hz 1920*1440@75Hz Pixel Clock 261.000[MHz] 216.000[MHz] 139.054[MHz] 116.406[MHz] 297.000 [MHz] H.Frequency 106.270[kHz] 100.000[kHz] 98.760[kHz] 105.440[kHz] 112.500 [kHz] V.Frequency 74.997[Hz] 80.000[Hz] 120.000[Hz] 160[Hz] 75.000 [Hz] H.Tortal Time 2456 [dots] 9.410 [us] 2160 [dots] 10.000 [us] 1408 [dots]...
  • Page 99 NOTE) Use special signals when original signals can not be made by equipped signal generator. Don't use these signal timing for Focus Adjustment. (The resolution is different.) Program No. Original Special Original Special Original Special Original Special Original Special Original Special Signal Name VESA1280*...
  • Page 100 3. Position of Connector / Test point of Adjustment SW.REG/HV PWB CN-R CN-PM CN-P CN-K CN-PS CN-CR HEAT SINK T981 TP-HV CN-DF TP-DF HEAT SINK CNTP F.B.T. C5R1 VR5T1 HIGH VOLTAGE ADJUSTMENT (WITH SEALING CAP) Fig 3-1 SW/HV PWB (PARTS SIDE) LED111 LED112 LED113 CN-LEB CN-CLB CN-CLA...
  • Page 101 CN-AC IN6T1 CNSW2 CNPS Fig 3-4 INLET PWB (PARTS SIDE) FOCUS SCREEN Fig 3-5 F.B.T. VR TP-B TP-R TP-G CNSGA TP-G2 CN-G2 CN-GND CN-HT Fig 3-6 CRT PWB (PARTS SIDE) 5-60...
  • Page 102 CNSG CNHT CNPU CNASD TP-TMP CNCL TP-ABL CNPM Mini D-SUB USB Fig 3-7 VIDEO PWB (PARTS SIDE) IC4H1 CNPU Fig 3-8 PU PWB (PARTS SIDE) 5-61...
  • Page 103 CN-AF HEAT SINK CNDF CNHSC CNVSC CNHDY CNEMF CNVDY CNCR CNZDY VR581 SW581 Fig 3-9 DEF PWB (PARTS SIDE) CN-SD CN-DSA CN-DSB Fig 3-10 OSC PWB (PARTS SIDE) 5-62...
  • Page 104 CN-LL CN-RR CN-EMF CNEM Fig.3-11 EMF PWB 5-63...
  • Page 105 INSPECTION 1. Inspection of PLUG & PLAY communication 1-1. A construction of System This system should be connected as shown below. T E S T P R O G R A M P ro g ra m D is k P A R T N o .
  • Page 106 1-3. Operation - The operation should be performed according to the screen message. - When the message of “Please set Vsync to 42Hz.” is displayed, set the signal generator to the signal with vertical synchronization frequency of 42Hz. When the message of “Please set Vsync to over 55Hz.” is displayed, set the signal generator to the signal whose vertical synchronization frequency is between 55Hz and 25kHz.
  • Page 107 1-5. EDID data file The EDID data file text is shown below. When you write or inspect EDID for this monitor, the following table can be used. File name : FP1350 EDID-119 4C 9B 4C FF A0 3C FD 00 FC 00 Table 1-5.
  • Page 108 2. CRT [A] Screen and Faceplate Blemishes 1. Measuring conditions 1-1. Defect, when tube is in operation, shall be observe under the following conditions: 9,300 K +27 M.P.C.D.(or 6,550 K + 7 M.P.C.D.) and white raster of 34 cd/m (10 ft-L) at the center of the screen or component monochromatic raster used to generate raster above.
  • Page 109 3-2. Defective faceplate 1) Bubble, Stone, and Blister, etc. Mean diameter (*1) Acceptable number of defect Minimum interval (mm) (mm) Zone A Zone B A + B 0.76 0.51 ~ 0.75 0.26 ~ 0.50 (*2) 0.11 ~ 0.25 Note (*1) Mean diameter shall be either one of the following values, which is smaller. (a + b) / 2 or a / 20 + 2b (a: length, b: width) Note (*2) Maximum 5 pcs.
  • Page 110 [B] Defective AR-film standards 1. Test conditions 1) Place the bulb on the test table and light it with the white fluorescent lamp from the above. 2) Illuminance on the surface of the bulb tube shall be more than 1000 Lx, less than 1500 Lx. 3) Observe at a 40cm distance from tube surface, ignore the defects that can not be seen at this distance.
  • Page 111 • Low contrast: Visually noticeable stain and flaw, etc. that rarely block off the Light from the phosphor screen. → visible interference color through the reflection (not visible through the permeability) (Note) Ignore the light spot with no interference color. (However, Non of them with its size in excess of 3.75mm is acceptable, that damages the product quality.) Standards...
  • Page 112 4. Cautions for cleaning AR-firm CRT 4-1. Do not rub or hit CRT surface with hard object. 4-2. Wipe off the dust softly with a dry soft cloth if necessary. Do not use the acid and alkaline cleaner, solution such as detergent or thinner, etc. If dust can not be wiped off with a dry soft cloth, use the water, ethyl alcohol, neutral glass cleaner or detergent.

  • Page 113: Trouble Shooting

    TROUBLE SHOOTING TABLE OF CONTENTS Page 1. NO RASTER ………………………………………………………………………………......… 7-2 2. ABNORMAL VIDEO ON CRT SCREEN (too dark or too bright) ………………………………….... 7-4 3. UNSTABLE PICTURE ……………………………………………………………………………………... 7-8 3-1.Horizontal ………………………………………………………………………………………………..….. 7-8 3-2.Vertical ……………………………………………………………………………………………………..….. 7-9 4. ON SCREEN MANAGER (OSM) FAILURE ……………………………………………………………..7-10 5.

  • Page 114: No Raster

    1. NO RASTER Remove the CN-K, measure the voltages at K1(220V), K2(14.5V), K4(-15.6V) and Check 220V line CN-P P3(80.2V),P6(8.5V) on the SW/HV PWB (PWE-571) Check 80.2V line Check 14.5V line Check -15.6V line Check 8.5V line Check SW REG. (see item 13 ) Is LED power Check H and V sync input.
  • Page 115 CONTINUE T5R1 (FBT), R905, C903, C904, CNCRT and screen wire failure Check H OSC/DEF/HV circuit (see item 6) Turn the screen control clockwise Back raster appear? Horizontal bar appear? CRT failure Check V OSC/DEF circuit (see item 7) Video amp. circuit failure (see item 2)

  • Page 116: Abnormal Video On Crt Screen (Too Dark Or Too Bright)

    2. ABNORMAL VIDEO ON CRT SCREEN (too dark or too bright) * Input 1/4 window pattern. Set up BRIGHTNESS: preset, CONTRAST:max. and R/G/B control:all max. at OSM menu. Measure R/G/B video outputs at TP-R, TP-G and TP-B on the CRT PWB (PWE-567C). Normally, R/G/B video output voltages are approx.
  • Page 117 CONTINUE 1 CONTINUE 2 Q711 R/G/B failure. 1) Measure the video input at IC711 pins 6(R), 11(G) and 2(B) on Check IC711 input VIDEO PWB (PWE-567A). The voltage is approx. 0.78Vp-p. 2) Measure the clamp pulse input at IC711 pin 19 on VIDEO PWB (PWE-567A).
  • Page 118 CONTINUE 1 CONTINUE 2 IC731 failure. BNC: LC761R/G/B, C701R/G/B, C702R/G/B or MD701R/G/B failure. D-SUB: LC762R/G/B, C703R/G/B, C704R/G/B or MD702R/G/B failure. Measure R/G/B cathode voltages at TP-R, TP-G and TP-B on the CRT PWB Check R/G/B cathode (PWE-567C). Normally, the DC voltage is between approx. 80V and 150V voltage video output at point A when BRIGHTNESS is preset.
  • Page 119 CONTINUE Check IC7F1 input voltage Measure the voltage at IC7F1 pin 5 on the CRT PWB (PWE- 567C). The voltage is approx. 8.5V. LC901, LC903, R7F5, C764 or CN-HT failure. Measure the voltage at IC7F1 pin 2 on the CRT PWB Check the heater controlled voltage (PWE-567C).

  • Page 120: Unstable Picture

    3. UNSTABLE PICTURE 3-1. Horizontal Measure at CN-AF 5 pin (HD) on the VIDEO PWB (PWE-567A) Check H sync Check the sync pulse at Mini D-SUB 13pin on the VIDEO Check the input H sync PWB (PWE-567A). Signal cable failure Check the pulse (HD) at IC731 22 pin on the VIDEO PWB Check the output pulse (PWE-567A).
  • Page 121 3-2. Vertical Measure at CN-AF 7 pin (VD) on the VIDEO PWB (PWE-567A) Check V sync Check the sync pulse at Mini D-SUB 14pin on the VIDEO Check the input V sync PWB (PWE-567A). Signal cable failure Check the pulse (VD) at IC731 21 pin on the VIDEO PWB Check the output pulse (PWE-567A).

  • Page 122: On Screen Manager (Osm) Failure

    4. ON SCREEN MANAGER (OSM) FAILURE Check the pulses 5Vp-p at IC791 pins 13(R), 15(G), 17(B) and Check the OSM signals output 12(blanking) on the VIDEO PWB (PWE-567A). When EXIT, CONTROL or PROCEED SW is pressed. • IC711 failure Check the pulse 5Vp-p at IC791 pin 18 on the VIDEO PWB (PWE-567A). Check the H sync input •...

  • Page 123: Abnormal Picture

    5. ABNORMAL PICTURE 5-1. Horizontal Size Measure the voltage at CRT anode. Check HV voltage Normally, the voltage is approx. 27KV. HV circuit failure (see item 6) Check the voltage at CNP pin 6 on the VIDEO PWB (PWE-567A). Check 8.5V line SW REG.
  • Page 124 CONTINUE IC571 failure Check the operation of MQ571, Q572, Q573. Check S-correction capacitor Switching circuit MQ571, Q572, Q573 failure. Measure the voltage at IC592 pin 1 and IC531 pin 12. Check whether IC592 pin 1 on DEF PWB Normally, pin 1 voltage varies from approx. 3.5V to 5V and and IC531 pin 5 vary by horizontal size pin 5 voltage varies from approx.

  • Page 125: 5-3.Horizontal Position

    5-2. Vertical Size Check whether the amplitude (approx. 6Vp-p~10Vp-p) at CN-DSB pin 12 on the DEF PWB (PWE-568) varies by OSD vertical size control or not ? v. saw wave • IC501 or IC511 failure. • Digital control circuit failure. (see item 12) v.

  • Page 126: 5-4.Vertical Position

    5-4. Vertical Position Check whether the DC voltages level at CN-DSB pin 12 on the DEF PWB (PWE-568) varies by OSD vertical position control or not? V. saw wave • IC501 failure. • Digital control circuit failure. (see item 12) Position down Position up Check whether the DC voltages level at IC421 pin 8 on the DEF...

  • Page 127: 5-6.Distortion Correction Circuit

    5-6. Distortion Correction Circuit Check whether the distortion on the screen varies by OSD distortion correction control (SIDEPIN) or not ? Sidepin + Sidepin - vertical period Check the waveform at CN-DSB pin 11 is present. Approx.0.5Vp-p. vertical period Check the waveform at IC511 pin 5. Approx.0.5Vp-p.

  • Page 128: 5-7.Poor Focus

    5-7. Poor Focus Adjust Focus VR on FBT. (F1 and F2) Focus is poor all over the screen. FBT, focus lead, CRT socket or CRT failure. Focus performance is different at center and other parts of the screen. Check the dynamic focus voltage at TP-DF. H.

  • Page 129: 5-8.Impurity On Crt Screen

    5-8. Impurity on CRT Screen oes the picture sway when the degaussing Select the degauss item on OSD, and push "PROCEED" /Digital control circuit failure /Z connector disconnected /CL connector disconnected Confirm degaussing effect No effect /SW REG. failure /Degauss coil failure Effect, but not enough Make sure that the monitor is removed away from any strong magnetic field No magnetic field interference...
  • Page 130 CONTINUE1 CONTINUE2 Check the voltage at the CNPU (pin3 and pin4)on the VIDEO PWB. Confirm that the voltage varies at each direction of the monitor and its variable range should be between +1.5volt and +3.5volt. /IC4J1,IC4L1,IC4N1 failure /or its associated circuit failure /IC4H1 failure /IC4H3 failure or its associated circuit failure Check the voltage at the CNCL pin14 or TP-TMP on the VIDEO PWB.
  • Page 131 CONTINUE1 CONTINUE2 /Q4P1, Q4P3, MD4P1 /or its associated circuit failure * When power switch on too, Check the voltage of IC801 pin 51 increase at approx. C4P1 voltage (See Graph 5-8-1) + 0.5V * Be sure to use voltage meter which has input impedance more than 10MΩ /Q4P4, D4P1, MD4P2, R4P7 CRT, DY failure /or its associated circuit failure...

  • Page 132: H Osc / Def / Hv Circuit Failure

    6. H OSC / DEF / HV CIRCUIT FAILURE Check the drive pulse at CN-DSB pin 10 on the DEF PWB (PWE- 568) outputs a rectangle waveform which amplitude is 4.3Vp-p. Check the horizontal drive pulse. Normally, it is sawtooth wave which amplitude is Check the waveform of IC592 pin 3.
  • Page 133 CONTINUE1 CONTINUE2 CONTINUE3 Remove L5R1 and check 80V line again. • Video amplifier IC721 on the VIDEO PWB (PWE-567A) failure. • Check SW REG circuit. (see item 13) Q5R1 and its ambient circuit failure. Measure the voltage at C5P1 on the SW/HV PWB (PWE-571). Check 15V line.
  • Page 134 CONTINUE1 CONTINUE2 Check the abnormal picture. (see item 5) Check the horizontal sync pulse (HD) at CN-DSB pin 4 on the DEF Check the horizontal input trigger. PWB (PWE-568). Check the unstable picture. (see item 3-1) Its amplitude is approx.3Vp-p at Q502 gate on the OSC PWB (PWE-567B). Check the Q502 gate pulse.

  • Page 135: Osc / Def Circuit Failure

    7. V OSC / DEF CIRCUIT FAILURE Measure the voltage at CN-K pins K2 and K4 on the DEF PWB (PWE-568) Pin Check +15V/-15V line. K2 voltage is approx. 14.5V. Pin K4 voltage is approx. -15.6V. • CN-K wire failure. •...

  • Page 136: Self Test Error

    8. SELF TEST ERROR Measure the voltage at IC801 pin 14 on the VIDEO PWB (PWE-567A). Check the self-test mode The voltage is approx. 0V when self-test. IC801 or its ambient circuit failure Measure the pulse at the collector of Q797 on the VIDEO PWB (PWE-567A).

  • Page 137: Raster Centering Circuit Failure

    9. RASTER CENTERING CIRCUIT FAILURE Make certain that the image position is adjusted when the horizontal Check the raster control operation centering control(VR581) on the DEF PWB (PWE-568) is used. Check the raster control The voltage of CN-CR pin1-2 on the DEF PWB (PWE-568) should be approx.

  • Page 138: Power Management System (Pms) Failure

    11. POWER MANAGEMENT SYSTEM (PMS) FAILURE 11-1. PMS FAILURE 1(When a monitor receives Horizontal and Vertical Sync.) At the first, push the “EXIT” switch 2 times or over. Check the color of power LED. Green Check the picture NG: See “No Raster” (item 1) Yellow Check the signal.

  • Page 139: Pms Failure 2(When A Monitor Receives No Horizontal Sync)

    11-2. PMS FAILURE 2(When a monitor receives no Horizontal Sync) Check the PMS control voltage. Check the voltage of pin 22 of IC801. The voltage should be approx. 5V. IC801 or IC7A1 may have failed. SW/HV may have failed. (see item 13) 11-3.

  • Page 140: Digital Control Circuit Failure

    12. DIGITAL CONTROL CIRCUIT FAILURE 12-1. Digital control error Check +8.5V line Check the voltage at CN-P pin 6 on the VIDEO PWB(PWE-567A). Check SW REG (see item 13) Check +5V line Check the voltage at IC8G1 pin 2 on the VIDEO PWB(PWE-567A). IC8G1 failure.

  • Page 141: Digital Control Error

    12-2. User control error Check the control switches Check the voltage at CN-CL pin 4 to 11 on the VIDEO PWB(PWE-567A), when push the user control switches. CONTROL PWB failure Digital control error 12-3. DAC output error Check upper and lower ref. voltage Check the voltage at each DAC upper and lower.

  • Page 142: Switching Regulator Circuit Failure

    13. SWITCHING REGULATOR CIRCUIT FAILURE 1. Make sure that the voltage of between K 1 Check the output voltages pin and 3 pin (GND) is approx. 220V. 2. Make sure that the voltage of between P 3 pin and 5 pin (GND) is approx. 80.2V. 3.
  • Page 143 CONTINUE When the power switch turns on, Check the following parts the voltage of both ends of C623 C611, C624, C671, C672, C674, C6A1, repeats from 5V to 8V. C6A2, C6E1, C6E2, D624, D671, D6A1, D6E1, IC621, IC671, R623, R624, R625, R638, Q623, Q624, Q625, Q672, ZD622, ZD672, T601.

  • Page 144: Moire Cancel Failure

    14. MOIRE CANCEL FAILURE Operate the moire cancel control, and check the moire cancel control signal. When the moire cancel control is max. condition, IC501 pin 22 waveform is as follows. vertical period horizontal period Only horizontal signal is NG. •...

  • Page 145: Plug & Play Failure

    15. PLUG & PLAY FAILURE 15-1. DDC 1 failure Retry Check the DDC Function alter Power OFF/ON. Check the Write Protect function Check the voltage of IC8A1 pin 3. It should be approx. 0 (V) Check the vertical frequency 41±1Hz Your PC system may have failed others CPU (IC801) failure...

  • Page 146: Out Of Cg-Specification

    16. Out of Cg-specification GOOD Adjust the static and the dynamic convergence with OSD control. Check the voltage at the feedback resistor(vertical S-cg : R8J3, horizontal S-cg : R8H3). Confirm the variable range of the voltage at the feedback resistor should be approximately -2.3volt --- +2.3volt within the control range of the static convergence control.

  • Page 147: Usb Circuit Failure

    17. USB CIRCUIT FAILURE USB function don’t operate. Check the voltage of IC851 pin27 outputs 5V. Check the following parts Q851, Q852, ZD854, R855, R857, R85N, R85P IC851 failure 7-35...

  • Page 148: Auto Adjust Circuit Failure

    18. AUTO ADJUST CIRCUIT FAILURE Set signal all white characters, and perform AUTO ADJUST on OSD control. When check the following contents, perform AUTO ADJUST at the each time. Make sure that the voltage of C8M7 is approx. +5.0V and C8MF is approx.+3.3V.

  • Page 149: Circuit Description

    CIRCUIT DESCRIPTION TABLE OF CONTENTS Page 1. VIDEO CIRCUIT ………………………………………………………………………...…………..……….…… 8-3 1) Selection of BNC/D-SUB Input …………………………………………………………………..…………. 8-3 2) Video Signal Amplification Section …………………………………………………………………………... 8-4 3) Video Bias Circuit ……………………………………………………………………………………..……… 8-5 4) ABL Circuit ……………………………………………………………………………………………………… 8-5 5) On Screen Manager (OSM) …………………………………………………………………………………... 8-6 6) Self Test …………………………………………………………………………………………………….……...
  • Page 150 6. CPU CIRCUIT ……………………………………………………………………………………………………. 8-21 1) CPU ……………………………………………………………………………………………………….……. 8-21 2) DC Control Circuit ………………………………………………………………………………………….…. 8-23 3) Power Management System (PMS) Circuit ………………………………………………………………... 8-24 4) Plug and Play (DDC 1 / 2) ……………………………………………………………………………….…… 8-25 5) User Control Operation ………………………………………………………………………………………. 8-26 6) Change DATA Value ..........................8-29 7) Save DATA Value To Memory ......................

  • Page 151: Video Circuit

    1. VIDEO CIRCUIT 1) Selection of BNC/D-SUB Input The input selection circuit selects the BNC input or D-SUB input according to the voltage of IC731 pin19 (0V or 5V). IC731 pin19 voltage changes whenever SW108(momentary switch) is pressed. CPU detects BNC input or D-SUB input by input signal of Sync On Green and H/C sync. JC-1946UMW’s user can know by OSM information whether input is BNC or D-SUB.

  • Page 152: Video Signal Amplification Section

    2) Video Signal Amplification Section The video signal amplification section basically consists of the input section circuit and the amplification circuit. Each Red(R), Green(G) and Blue(B) video signal circuit is identical to each other, the G circuit being described below. The video signal through the input selection circuit is input the amplification circuit.

  • Page 153: Video Bias Circuit

    3) Video Bias Circuit The video signal is amplified maximum 45Vpp in IC721 output, then the signal is done DC bias by video bias circuit through C729G. This DC voltage varies when cut off adjustment and brightness adjustment. The video bias circuit consists of fixed voltage circuit construction with op-amp. Q741G is used high- voltage transistor due to get approx.80V to 170V at cathode black level voltage.

  • Page 154: On Screen Manager (Osm)

    5) On Screen Manager (OSM) The OSM circuit consists of IC791(OSM controller) and IC711(Pre-amp) which matrix the video signal and the OSM signal. IC791 receives the display data from IC801(CPU), and the signal outputs R, G, B and Blanking are fed out of pins 13, 15, 17 and 12 respectively. The OSM signals are mixed with video signals in IC711(Pre-amp).

  • Page 155: Deflection Circuit

    2. DEFLECTION CIRCUIT 2-1. The oscillation and deflection control integrated circuit The oscillation and the deflection circuit is generated by IC501. IC501 has digital signal processor (DSP) and generates variety of correction signals by calculations. The feature of IC501 are low tolerance and low drift of temperature compared with current analog circuit.

  • Page 156: Horizontal Deflection Circuit

    2-2.HORIZONTAL DEFLECTION CIRCUIT 1) Horizontal oscillation circuit and Horizontal position control circuit The horizontal oscillation circuit and the horizontal position control circuit are constructed by IC501. The horizontal oscillation circuit in IC501 is composed of two PLL ( Phase Locked Loop) circuit (PLL1 circuit and PLL2 circuit).

  • Page 157: Distortion Correction Circuit

    1/N Divider IC501 H. drive Duty cycle Phase Comparator From PLL1 pulse control Approx.1Vdc Q504 0.92Vdc R507 R509 R510 R508 C510 C511 Approx.1Vdc Filter Circuit (Fig. 2.4) PLL2 circuit 2) Distortion correction circuit a. Size distortion correction circuit This model has 6 size distortion correction items. (SIDE PIN, ALIGN, CORNER TOP, CORNER BOTTOM, S-WAVE, SIDE WING).
  • Page 158 IMAGE C524 WAVE C524 WAVE IMAGE IN/OUT ALIGN CORNER CORNER BOTTOM S-WAVE SIDE WING MIN. OSM MENU MAX. (Fig. 2.6) Voltage at C524 and screen image b. Phase distortion correction circuit This model has 4 phase distortion correction items. (SIDE PIN BALANCE, TILT, CORNER TOP BALANCE, CORNER BOTTOM BALANCE).

  • Page 159: Horizontal Drive Circuit

    IMAGE C519 WAVE C519 WAVE IMAGE LEFT/RIGHT TILT CORNER TOP BALANCE CORNER BTM BALANCE MIN. OSM MENU MAX. (Fig.2.8) voltage at C519 and screen image 3) Horizontal Drive Circuit The horizontal drive system uses what is generally referred to as a flyback system. The horizontal drive pulse output from IC501 pin 25 switches Q555 on and off.
  • Page 160 E/W from IC501 Amplifier IC5GA 220V PWM Chopper +B Modulator Q5G1 Q5A1 C598 R59J PWM Amp H_Drive SAW GEN Pulse H.Out Trans Error Amp Ref. Voltage Bufferr Amp IC592 H.Def Out H.SIZE MAX IC591 H.SIZE AFC_Feedback (Fig. 2.9) HORIZONTAL SIZE CONTROL CIRCUIT a.

  • Page 161: Rotation Correction Circuit

    The H SIZE MAX has two area of memory (H SIZE MAX 1 and 2) which is selected by the below table. H Frequency Range[KHz] Selected Memory 101.0 - 115.0 H SIZE MAX 2 82.6 - 101.0 H SIZE MAX 2 69.5 - 82.6 H SIZE MAX 2 52.7 - 69.5...

  • Page 162: Vertical Defrection Circuit

    2-3. VERTICAL DEFRECTION CIRCUIT The vertical deflection circuit is constructed by following three blocks. 1) Sawtooth wave generating, vertical size and position control and linearity control circuits 2) Vertical filter circuit 3) Vertical output amplifier circuit a. Sawtooth wave generating, vertical size and position control and linearity control circuits The vertical sync signal from IC7A1 on VIDEO PWB is fed to IC501 pin 42 on OSC PWB.
  • Page 163 pin4 (Q421 Gate) pin18 (Q422 Gate) pin19 (Q422 Gate) vertical frequency (Hz) (Fig. 2.12) IC532 output voltage c. Vertical output amplifier circuit The current proportional to the input voltage to IC401 is supplied to the vertical deflection coil (V-DY). The vertical deflection current is taken as voltage wave form on R406 and fed back to IC401. R404 V-DY R403...

  • Page 164: High Voltage Circuit

    3. HIGH VOLTAGE CIRCUIT The high voltage circuit consists of the high voltage control circuit, and Q5R1 and its peripheral circuits made up for the high voltage output circuit and the high voltage protection circuit for instance of high voltages circuit irregular operation.
  • Page 165 (Fig.3.1) HIGH VOLTAGE CIRCUIT AND PROTECTOR CIRCUIT 8-17...

  • Page 166: Blanking Circuit

    4. BLANKING CIRCUIT The blanking circuit consists of Q7E1 through Q7E3 which amplify the blanking pulse, the spot killer circuit and the auto adjust blanking circuit. 1) Blanking Circuit The IC501(DSP) on OSC PWB generates the blanking pulse which are mixed the horizontal blanking pulse and the vertical blanking pulse and outputs the blanking pulse(VH_BLK) from pin40.

  • Page 167: Dynamic Focus Circuit

    5. DYNAMIC FOCUS CIRCUIT The dynamic focus circuit section is made up of following three blocks: 1) The horizontal parabolic wave generation and gain control circuit 2) The vertical parabolic wave generation and gain control circuit 3) The output amplifier circuit and the coupling circuit 1) The horizontal parabolic wave generation and gain control circuit IC501 generates horizontal dynamic focus signal controlled by MPU data based on horizontal frequency and horizontal screen size.
  • Page 168 3.3V Aprox. 1Vp-p R528 R529 IC510 R527 V.DF. output (1bitDAC) R541 Aprox. 3Vp-p C520 IC510 R540 Inverting amplifier Integration circuit (3times amplifier) (Fig. 5.2) The vertical parabolic wave generation and gain control circuit 3) The output amplifier circuit and the coupling circuit The horizontal and vertical parabola waveforms output from IC501 are clamped before each output circuit for wide dynamic range of the output circuit.

  • Page 169: Cpu Circuit

    6. CPU CIRCUIT 1) CPU IC801: 8 bit CPU / CMOS IC IC802: EEPROM / CMOS IC IC571: I/O Expander This system has the following functions. Frequency Counter C BUS control fH band Degaussing Control DAC control (see 2. DC Control Circuit) PMS control (see 3.
  • Page 170 c. Fh Band 65.5kHz 115kHz 41.5kHz 49kHz 82.6kHz 33.6kHz 57kHz 30.8kHz 52.7kHz 36.6kHz 69.5kHz 101kHz 45.8kHz (Fig. 6.1) Output fh Band status (IC571) Attention: fH1 to 7 Band signals are output for horizontal output circuit control to keep the horizontal linearity constant.

  • Page 171: Dc Control Circuit

    2) DC Control Circuit CPU (IC801) controls three DAC ICs (IC532, IC751, IC711) through I C BUS. Its analog outputs control DAC output so that the analog voltage corresponds to the DC control data from CPU. IC802 is an EEPROM which stores the DC control data for preset graphics standard timings.

  • Page 172: Power Management System (Pms) Circuit

    3) Power Management System (PMS) Circuit PMS circuits reduce power consumption. They have 3 modes of stand-by, suspend and off. Table 4 PMS Mode (IC801) Mode Pin 22 PMS_SUS# Pin 8 PMS_OFF# Pin 54 POWER LED High High Stand-by High High Suspend High...

  • Page 173: Plug And Play (Ddc 1 / 2)

    4) Plug and Play (DDC 1 / 2) VESA Display Data Channels (DDC) a. DDC1 When the monitor is turned on, the operation mode starts in DDC1 mode. When the VCLK (SYNC) is provided to IC8A1 pin 7, serial data stream is generated from the IC8A1 pin 5 by synchronizing with the rising edge of the VCLK.

  • Page 174: User Control Operation

    5) User Control Operation User Control Interface (IC801) Table 5 Input (IC801) Pushed SW pin 33 pin 32 pin 34 pin 31 pin 30 pin 29 pin 28 pin27 EXIT High High High High High High High High High High High High High...
  • Page 175 b. OSM MENU structure is as below. (It is structured “TAB”, “SUB MENU”) ITEM press “PROCEED” PROCEED (Fig. 6.3) SUB MENU Table 6 USER CONTROL SWITCH FUNCTION “EXIT” “-” “+” “PROCEED” “5” “6” MENU ITEM ITEM SUBMENU ITEM ITEM SUBMENU ITEM ITEM ALLITEM...
  • Page 176 c. How to display OSM MENU MENU(u) : Press “EXIT” or “-”, “+”, “5”, “6”, “PROCEED” once when OSM MENU is not displayed. BNC/D-SUB EXIT CONTROL PROCEED RESET d. How to change TAB press “-” OR “+” switch while highlighted bar is on TAB PROCEED RESET BNC/D-SUB EXIT...

  • Page 177: Change Data Value

    e. Select ITEM CONTROL PROCEED RESET BNC/D-SUB EXIT Press “5” or “6” switch “6” 6) Change DATA Value Press “-” or “+” switch while highlighted BAR is on ITEM BNC/D-SUB PROCEED RESET EXIT CONTROL “-” “+” 8-29...

  • Page 178: Save Data Value To Memory

    7) Save DATA Value To Memory Move highlighted BAR to other “ITEM” or “TAB” (press “EXIT” or “6”, “5”) CONTROL PROCEED RESET BNC/D-SUB EXIT 8) Open SUB MENU Press “PROCEED” switch when the highlighted “ITEM” contains “..→” BNC/D-SUB PROCEED RESET EXIT CONTROL 9) Turn off OSM MENU...

  • Page 179: Open Menu(S)

    10) Open MENU(S) Open menu “INFORMATION” - “DISPLAY MODE” then press “RESET” and “+”, “-” switch at same time EXIT PROCEED RESET BNC/D-SUB CONTROL A warning message will be displayed, then press “PROCEED” 8-31...

  • Page 180: Osm Menu Structure

    • OSM MENU Structure 1. MENU (u) (Fig. 6.4) MENU(u) - “BRIGHTNESS&CONTRAST” (Fig. 6.5) MENU(u) - “SIZE & POSITION” (Fig. 6.6) MENU (u) - “RGB” (Fig. 6.7) MENU(u) “GEOMETRY” (Fig. 6.8) MENU(u) - “TOOL1” (Fig. 6.9) SUB MENU(u) - “MOIRE CANCELER” (Fig.
  • Page 181 (Fig. 6.11) SUB MENU(u) - “AREA CONVERGENCE” (Fig. 6.12) SUB MENU(u) - “CORNER CORRECTION” (Fig. 6.13) SUB MENU(u) - “LINEARITY” (Fig. 6.14) SUB MENU(u) - “GLOBALSYNC 1” (Fig. 6.15) SUB MENU(u) - “GLOBALSYNC 2” (Fig. 6.16) SUB MENU(u) -“SHARPNESS” 8-33...
  • Page 182 (Fig. 6.17) MENU(u) - “FACTORY PRESET” (Fig. 6.18) SUB MENU(u) - “TOOL2” (Fig. 6.19) MENU(u) - “LANGUAGE” (Fig. 6.20) SUB MENU(u) - “OSM POSITION” (Fig. 6.21) SUB MENU(u) - “OSM TURN OFF” (Fig. 6.22) SUB MENU(u) - “OSM LOCK OUT1” (Fig.
  • Page 183 (Fig. 6.25) SUB MENU (u) - “EDGE LOCK” (Fig. 6.26) SUB MENU(u)- “REFRESH NOTIFIER” (Fig. 6.27) “REFRESH NOTIFIRE” MESSAGE“ (Fig. 6.28) MENU(u) - “INFORMATION” (Fig. 6.29) SUB MENU(u) - “DISPLAY MODE” (Fig. 6.30) SUB MENU(u) - “FITNESS TIPS” (Fig. 6.31) “FITNESS TIPS” MESSAGE-1 (Fig.
  • Page 184 (Fig. 6.33) “FITNESS TIPS” MESSAGE-3 (Fig. 6.34) SUB MENU(u) - “MONITOR INFO.” 2. MENU(s) (Fig. 6.35) MENU(s) - TAG1 (Fig. 6.36) MENU(s) - TAG2 (Fig. 6.37) MENU(s) - TAG3 (Fig. 6.38) MENU(s) - TAG4 (Fig. 6.39) MENU(s) - TAG5 (Fig. 6.40) MENU(s) - TAG6 8-36...
  • Page 185 (Fig. 6.41) MENU(s) - TAG7 (Fig. 6.42) MENU(s) - TAG8 (Fig. 6.43) MENU(s) - TAG9 (Fig. 6.44) MENU(s) - TAG A (Fig. 6.45) MENU(s) - TAG B (Fig. 6.46) MENU(s) - TAG C (Fig. 6.47) MENU(s) - TAG D (Fig. 6.48) MENU(s) - TAG D 8-37...
  • Page 186 Factory Preset Open Menu (u) - “TOOL1”, then move highlighted BAR to “FACTORY PRESET” “Warning message” will be displayed, when “RESET” switch is pressed. All user setting are set to “FACTORY PRESET” value when “PROCEED” switch is pressed. Table 11 FACTORY PRESET ITEM preset value BRIGHTNESS...
  • Page 187 FITNESS TIPS How to confirm “FITNESS TIPS” message. 1) Open SUB MENU (u) - “INFORMATION” - “FITNESS TIPS” 2) Press “+” and “ ” switch together, then message will be displayed. 3) Press “+” switch, then message will change. 4) Press “+” switch, then message will change. 5) Press “+”...

  • Page 188: Moire Canceller

    7. MOIRE CANCELLER MOIRE canceler circuit is constructed by IC501 and its peripheral circuits. IC501 generates moire canceling signal which the period is double the horizontal and vertical wave signals controlled by MPU data. The moire canceling signal which is modulated by vertical period is output from 1bit D/A converter at pin 23. The output signal at pin 23 is integrated by integrated circuit which is composed of R512 and C513.

  • Page 189: Switching Regulator Circuit

    8. SWITCHING REGULATOR CIRCUIT 8-1. Rectifying and Smoothing Circuit AC input is rectified by D601. Then, it is smoothed by C610 and C609. The resulting DC voltage is supplied to the converter circuit. D601 C610 C609 CONVERTER CIRCUIT (Fig. 8-1) Rectifying and Smoothing Circuit 8-2.

  • Page 190: Converter Circuit

    8-3. Converter Circuit The converter circuit consists of the primary winding of T601, a switching device TR1(internal IC621) and surge absorbers (C611, R605 and D603) which are connected to the primary winding of T601. The oscillating signal through IC621 pin 5,Q624,R622 and C621 applied to IC621 pin 3(the base of TR1) so that the collector-emitter is turned ON and OFF.

  • Page 191: Output Rectifying And Smoothing Circuit

    8-4. Output Rectifying and Smoothing Circuit The fly-back voltages which are generated at the secondary windings of T601 are rectified by D6A1, D6E1, D6F1, D6G2, D6H1 and D6K1. Then, these voltages are smoothed by C6A1, C6A2, C6E1, C6E2, C6F1, C6F2, C6F3, C6G2, C6H1, C6H2, C6K1 and C6K2 so that DC voltages are obtained. The DC voltages are maintained constantly by controlling the ON period duty cycle of TR1 (internal IC621) in the converter circuit.

  • Page 192: Error Detection Amplifier Circuit

    8-5. Error Detection Amplifier Circuit The output voltage +80.2V is compared with the reference voltage at the error amplifier IC671. An error signal is applied to the control circuit via the photocupler PC621. +80.2V R674 PC621 CONTROL R675 CIRCUIT IC671 C673 (Fig.8-5) Error Detection Amplifier Circuit 8-6.

  • Page 193: Degaussing Circuit

    8-7. Degaussing Circuit When the power switch turns on, or when user accesses the OSM degauss control, the current flows from CN-PM pin 3 to the base of Q682. Then Q682 and RL6V1 turn on for 3 seconds. SW601 R6V1 +14.5V D6V1 CN-PM...
  • Page 194 8-8. Posistor’s Automatic Selective Circuit When the power switch is turn on, the voltage of C610 is detected by IC6V1. If AC input voltage is less than AC 150V, IC6V1 output is high. This will cause Q6V1 and RL6V2 to turn on. Then the posistor TH6V2 is connected in parallel with TH6V1.

  • Page 195: Over Current Protection

    8-9. Over Current Protection If some failure occurs and the total power of secondary outputs increase, the peak voltage of IC621 pin6 increases proportionally. And when the peak voltage of IC621 pin 6 reaches -1V, IC621 decreases ON period duty cycle of TR1 (internal IC621).

  • Page 196: Power Management System Circuit

    8-10. Power Management System Circuit When the horizontal and vertical Sync. are missing, the voltage of CN-PM pin 2 becomes low level and Q673 turn off and Q672 turn on. As current flows via R673, R675 and D673 into a PC621 when Q672 turns on, each output voltage starts lowering and becomes stable.

  • Page 197: Power Factor Controller Circuit

    8-11. Power Factor Controller Circuit This circuit is composed of Low pass filter block and Power feedback block. AC input is rectified by D601, then it charge C6Y2, C610 and C609. C610 is not charged during period α and period γ from input voltage directly, because the voltage of C6Y2 is smaller than the voltage of C610.
  • Page 198 SW/HV PWB PWE-571 INLET PWB PWE-566A POWER SWITCH T601 +220V RECTIFY INLET POWER +80.2V FACTOER FILTER SMOOTH OUTPUT CONTROLLER +14.5V RECTIFY -15.6V +8.5V SMOOTH AUXILIARY F5.5V DEGAUSSING POWER COIL SUPPLY DEGAUSSING CONVERTER CONTROL ERROR DETECTION AMPLIFIER OVER POSISTOR’S VOLTAGE AUTOMATIC PMS_SUS PROTECTION POWER...

  • Page 199: Dynamic Convergence Correction Circuit

    9. DYNAMIC CONVERGENCE CORRECTION CIRCUIT The dynamic convergence is corrected by adjusting the DC,saw wave and parabolic wave current flowing at both (the horizontal and vertical convergence correction) coils which are constructed on the deflection yoke.(refer to Fig.9.1.) The horizontal convergence correction circuit is same as the vertical convergence correction, the horizontal correction circuit being described below.
  • Page 200 BOTTOM H.CONVER SAW B HORIZONTAL 6 H.CONVER PARA B V.CONVER SAW T TOP VERTICAL V.CONVER PARA T V.CONVER SAW B BOTTOM VERTICAL 10 V.CONVER PARA B Fig. 9.2. Convergence correction function on OSM 8-52...

  • Page 201: Auto And Manual Purity Correction (Globalsync) Circuit

    10. AUTO and MANUAL PURITY CORRECTION (GLOBALSYNC) CIRCUIT 1) SENSOR PART JC-2241UMW has three sensors to correct poor purity. A) SENSOR OF EARTH MAGNETIC FIELD CIRCUIT B) SENSOR OF TEMPERATURE CIRCUIT C) SENSOR OF CRT BEAM CURRENT CIRCUIT 1-A) SENSOR OF EARTH MAGNETIC FIELD CIRCUIT EARTH MAGNETIC FIELD CORRECTION CIRCUIT compensates automatically for purity problem of the EAST,WEST,NORTH and SOUTH magnetic field.
  • Page 202 1-B) SENSOR OF TEMPERATURE CIRCUIT Temperature Sensor (IC151) is used in this circuit.(on CONTROL PWB) When the surrounding temperature of the unit change, the voltage of IC151 out put pin (CNCL 16pin on VIDEO PWB) varies. This voltage is fed to the A/D converter in IC801 (pin50) 1000 Temperature (°C) (Fig.10.2) The example of Temperature sensor (IC4H1) voltage...

  • Page 203: Purity Correction Part

    2) PURITY CORRECTION PART 2-A) NORTH/SOUTH purity correction MPU controls output voltage by comparing the sensor voltage (IC801 pin48) with the reference voltage (IC801 pin49) and GLOBALSYNC OSD. The D/A converter (IC532 pin16) output center voltage is 2.5V and variable range is between 0V and +5V. The DC output current flows in the EMF (Earth Magnetic Field) coil.

  • Page 204: Usb Circuit

    11. USB CIRCUIT IC801 (MAIN MPU) uses as the I2 C-Bus master, and IC851 (USB MPU) uses as the I2 C-Bus slave. At the time of power on of the monitor, IC801 forwards the present value and the necessary early period data to IC851 through I C-Bus (SCL, SDA).

  • Page 205: Auto Adjust Circuit

    12. AUTO ADJUST CIRCUIT By detecting video signal, AutoAdjust function adjusts size and position. MPU has several standards of frequency, active ratio and so on. MPU compares measurement data and with their standards, and calculates adaptive size and position data and sets them. IC8M1 is video detecting IC.

  • Page 206: Replacement Parts List

    REPLACEMENT PARTS LIST The components specified for Model FP1350-1(B) SYMBOL PART NO DESCRIPTION *** CRT & TUNER *** 3A302201 CRT M51LRY21X62 *** ICS *** IC151 370EF040 IC LM45CIM3X IC401 37006027 IC LA7876N IC421 370E6178 IC BA14741F-E2 IC471 37005256 IC UPC7812AHF (REG) IC481 370KE062 IC BA033FP-E2...
  • Page 207 SYMBOL PART NO DESCRIPTION IC8H1 37011320 IC LA6500 IC8J1 37011320 IC LA6500 IC8M1 37076420 MOS BU6483K(V_DETECT) IC8M2 370KE062 IC BA033FP-E2 *** TRANSISTORS *** CR601 35595026 TRIAC AC10FSM MQ571 35135001 TR SLA5041 (FET-ARRAY) Q101 35AB0313 TR 2SA1037AK-T146 R Q102 35AB0313 TR 2SA1037AK-T146 R Q103 35EB0238 TR DTC114YKA-T146...
  • Page 208 SYMBOL PART NO DESCRIPTION Q672 350J5382 TR 2SC3478A-T K Q673 35EB0230 TR DTC114EKA-T146 Q682 35CB0012 TR 2SC1623-T1B L6 Q6P1 350E3218 TR 2SC1740S-T R Q6V1 350E3218 TR 2SC1740S-T R Q711B 350H0200 TR 2SC2407A-T Q711G 350H0200 TR 2SC2407A-T Q711R 350H0200 TR 2SC2407A-T Q721B 35KB2498 TR 2SK3018-T106...
  • Page 209 SYMBOL PART NO DESCRIPTION Q7Y1 35AB1592 TR 2SA1434-TB Q7Y2 35CB2468 TR 2SC3624-T1B-L18 Q7Y3 35AB1592 TR 2SA1434-TB Q7Y4 35CB2468 TR 2SC3624-T1B-L18 Q7Y5 35AB1592 TR 2SA1434-TB Q7Y6 35CB2468 TR 2SC3624-T1B-L18 Q7Y7 35AB1592 TR 2SA1434-TB Q7Y8 35CB2468 TR 2SC3624-T1B-L18 Q831 35EB0230 TR DTC114EKA-T146 Q832 35EB0230 TR DTC114EKA-T146...
  • Page 210 SYMBOL PART NO DESCRIPTION D593 360K1025 DIODE 1SS133 D5A1 361K8252 DI RB721Q-40T72 D5A2 361K8252 DI RB721Q-40T72 D5E1 361K7777 DIODE 1SS244-T72 D5E2 361K7777 DIODE 1SS244-T72 D5E3 360K1025 DIODE 1SS133 D5G1 360K1025 DIODE 1SS133 D5G2 36107792 DIODE YG911S3R D5G3 361K8252 DI RB721Q-40T72 D5G4 361K8252 DI RB721Q-40T72...
  • Page 211 SYMBOL PART NO DESCRIPTION D713 360K1025 DIODE 1SS133 D721B 36CB0072 DIODE HSM83-TL D721G 36CB0072 DIODE HSM83-TL D721R 36CB0072 DIODE HSM83-TL D722B 36CB0072 DIODE HSM83-TL D722G 36CB0072 DIODE HSM83-TL D722R 36CB0072 DIODE HSM83-TL D741B 361K7777 DIODE 1SS244-T72 D741G 361K7777 DIODE 1SS244-T72 D741R 361K7777 DIODE 1SS244-T72...
  • Page 212 SYMBOL PART NO DESCRIPTION ZD5X1 360A0043 DIODE MTZJ6.2B T-72 ZD621 360A0072 DIODE MTZJ12B ZD622 360A0051 DIODE MTZJ7.5B T-72 ZD623 360K3116 DIODE RD4.7EB(3)-T4 ZD671 360A0021 DIODE MTZJ3.6B T-72 ZD672 360K3486 DI RD6.8JS AB(2)-T4 ZD6G1 360K3120 DIODE RD24EB(3)-T4 ZD6H1 360K3120 DIODE RD24EB(3)-T4 ZD6P1 360A0072 DIODE MTZJ12B...
  • Page 213 SYMBOL PART NO DESCRIPTION SW601 65360071 PUSH SWITCH ESB92S21B *** PWB ASSYS *** 840E6A03 SW/HV PWB ASSY 840E6C01 VIDEO PWB ASSY 840E6D01 DEF PWB ASSY 843D3B01 SUB PWB ASSY *** COILS & FILTERS *** 61322101 DEGAUSSIING COIL(85T,10H) 61322302 CORNER COIL(380T,105H) 61322301 COIL(100T,80H) FL6T1...
  • Page 214 SYMBOL PART NO DESCRIPTION LC762R 616K6964 NOISE FILTER TX07250NBT LC763 616K6942 NOISE FILTER FILMAC TU20M LC764 616K6942 NOISE FILTER FILMAC TU20M LC765 616K6942 NOISE FILTER FILMAC TU20M LC766 616K6942 NOISE FILTER FILMAC TU20M LC767 390J9028 FILTER ZJSC-R47-391TA LC768 390J9028 FILTER ZJSC-R47-391TA LC769 616K6970 NOISE FILTER TY2E101MCT...

  • Page 215: Push Button(Control)

    SYMBOL PART NO DESCRIPTION TH6V1 38112071 POSISTOR (PTH451A180M270A TH6V2 38112072 POSISTOR (PTH451ABG3R0Q14 USBCAB 73893263 USB CABLE X801 64098039 X'TAL(10.000MHZ) X851 64098070 X'TAL HC-49U/S(6MHZ)CIT X8M1 64098075 X'TAL 20MHZ(CSA-309) *** KNOBS & PUSH BUTTONS *** A4501 2E457751 PUSH BUTTON(CONTROL) *** APPEARANCE PARTS *** A3002 2E324471 CABINET BACK...
  • Page 216 SYMBOL PART NO DESCRIPTION R102 40AB3161 R,CHIP 330H 1% 1/10W R103 40AB3173 R,CHIP 1.0K 1% 1/10W R104 40AB3169 R,CHIP 680H 1% 1/10W R105 40AB3170 R,CHIP 750H 1% 1/10W R106 40AB3155 R,CHIP 180H 1% 1/10W R111 40AA3125 R,CHIP 10H 5% 1/10W R112 40AA3125 R,CHIP 10H 5% 1/10W...
  • Page 217 SYMBOL PART NO DESCRIPTION R4K4 40AB3204 R,CHIP 20K 1% 1/10W R4K5 40AB2128 R,CHIP 13H 1% 1/4W R4K6 40AC5309 R,CHIP 2.2H 5% 1/8W R4K7 40AC7309 R,CHIP 2.2H 5% 1/2W R4K8 40AAD141 R,CHIP 47H 5% 1/2W R4K9 40AA3173 R,CHIP 1.0K 5% 1/10W R4L1 40AB3214 R,CHIP 51K 1% 1/10W...
  • Page 218 SYMBOL PART NO DESCRIPTION R50G 40AB3197 R,CHIP 10K 1% 1/10W R50H 40AB3199 R,CHIP 12K 1% 1/10W R50J 40AA3221 R,CHIP 100K 5% 1/10W R50K 40AB3187 R,CHIP 3.9K 1% 1/10W R50L 40AB3215 R,CHIP 56K 1% 1/10W R50M 40AB3215 R,CHIP 56K 1% 1/10W R50P 40AA3197 R,CHIP 10K 5% 1/10W...
  • Page 219 SYMBOL PART NO DESCRIPTION R545 40AB3197 R,CHIP 10K 1% 1/10W R546 40AB3197 R,CHIP 10K 1% 1/10W R548 40AA3197 R,CHIP 10K 5% 1/10W R549 40AA3208 R,CHIP 30K 5% 1/10W R54A 40AA3173 R,CHIP 1.0K 5% 1/10W R556 40AA3149 R,CHIP 100H 5% 1/10W R557 404J9510 R,METAL 2.2H 5% 1/4W...
  • Page 220 SYMBOL PART NO DESCRIPTION R59A 40AB3224 R,CHIP 130K 1% 1/10W R59C 40AB3206 R,CHIP 24K 1% 1/10W R59E 40AB3205 R,CHIP 22K 1% 1/10W R59F 40AA3199 R,CHIP 12K 5% 1/10W R59G 40AB3185 R,CHIP 3.3K 1% 1/10W R59J 40AA3218 R,CHIP 75K 5% 1/10W R59K 40AA3191 R,CHIP 5.6K 5% 1/10W...
  • Page 221 SYMBOL PART NO DESCRIPTION R5R2 40224137 R,WIRE 33H 5% 5W R5R3 40409907 R,NETAL 0.18H 5% 1W R5T1 404C1731 R,METAL 270K 1% 1/6W R5T2 404C1718 R,METAL 75K 1% 1/6W R5U1 40AB3183 R,CHIP 2.7K 1% 1/10W R5U2 40AB3219 R,CHIP 82K 1% 1/10W R5U3 40AB1231 R,CHIP 270K 1% 1/8W...
  • Page 222 SYMBOL PART NO DESCRIPTION R696 40AA3187 R,CHIP 3.9K 5% 1/10W R697 40AA3219 R,CHIP 82K 5% 1/10W R6A1 40371221 R,METAL 100K 5% 1W R6E1 40372199 R,METAL 12K 5% 2W R6F1 40499508 R,METAL 0.1H 5% 1/2W R6G1 40499507 R,METAL 0.22H 5% 1/2W R6K1 404E1329 R,METAL 0.22H 5% 1/4W...
  • Page 223 SYMBOL PART NO DESCRIPTION R717R 40AA3151 R,CHIP 120H 5% 1/10W R718B 40AAD159 R,CHIP 270H 5% 1/2W R718G 40AAD159 R,CHIP 270H 5% 1/2W R718R 40AAD159 R,CHIP 270H 5% 1/2W R719B 40AA3151 R,CHIP 120H 5% 1/10W R719G 40AA3151 R,CHIP 120H 5% 1/10W R719R 40AA3151 R,CHIP 120H 5% 1/10W...
  • Page 224 SYMBOL PART NO DESCRIPTION R736B 40AA3143 R,CHIP 56H 5% 1/10W R736G 40AA3141 R,CHIP 47H 5% 1/10W R736R 40AA3143 R,CHIP 56H 5% 1/10W R738 40AA3169 R,CHIP 680H 5% 1/10W R739 40AA3181 R,CHIP 2.2K 5% 1/10W R73A 40AA3173 R,CHIP 1.0K 5% 1/10W R73E 40AB3191 R,CHIP 5.6K 1% 1/10W...
  • Page 225 SYMBOL PART NO DESCRIPTION R74EB 40AB3211 R,CHIP 39K 1% 1/10W R74EG 40AB3211 R,CHIP 39K 1% 1/10W R74ER 40AB3211 R,CHIP 39K 1% 1/10W R74FB 40AB3222 R,CHIP 110K 1% 1/10W R74FG 40AB3222 R,CHIP 110K 1% 1/10W R74FR 40AB3222 R,CHIP 110K 1% 1/10W R74GB 40AAD213 R,CHIP 47K 5% 1/2W...
  • Page 226 SYMBOL PART NO DESCRIPTION R7A7 40AA3173 R,CHIP 1.0K 5% 1/10W R7A8 40AA3169 R,CHIP 680H 5% 1/10W R7A9 40AA3212 R,CHIP 43K 5% 1/10W R7AG 40AB3214 R,CHIP 51K 1% 1/10W R7AH 40AA3169 R,CHIP 680H 5% 1/10W R7AK 40AA3169 R,CHIP 680H 5% 1/10W R7AL 40AA3159 R,CHIP 270H 5% 1/10W...
  • Page 227 SYMBOL PART NO DESCRIPTION R7Y3 40AA3185 R,CHIP 3.3K 5% 1/10W R7Y4 40AA3233 R,CHIP 330K 5% 1/10W R7Y5 40AA3161 R,CHIP 330H 5% 1/10W R7Y6 40AA3185 R,CHIP 3.3K 5% 1/10W R7Y7 40AA3233 R,CHIP 330K 5% 1/10W R7Y8 40AA3161 R,CHIP 330H 5% 1/10W R7Y9 40AA3185 R,CHIP 3.3K 5% 1/10W...
  • Page 228 SYMBOL PART NO DESCRIPTION R85H 40AAD149 R,CHIP 100H 5% 1/2W R85K 40AB3203 R,CHIP 18K 1% 1/10W R85L 40AB3215 R,CHIP 56K 1% 1/10W R85M 40AA3000 R,CHIP 0.0H 5% 1/10W R85N 40AA3173 R,CHIP 1.0K 5% 1/10W R8A1 40AA3207 R,CHIP 27K 5% 1/10W R8A2 40AAD146 R,CHIP 75H 5% 1/2W...
  • Page 229 SYMBOL PART NO DESCRIPTION R8ME 40AB3200 R,CHIP 13K 1% 1/10W R8MFB 40AA2161 R,CHIP 330H 5% 1/4W R8MFG 40AA2161 R,CHIP 330H 5% 1/4W R8MFR 40AA2161 R,CHIP 330H 5% 1/4W R8MH 40AA3173 R,CHIP 1.0K 5% 1/10W R901B 40AA3139 R,CHIP 39H 5% 1/10W R901G 40AA3139 R,CHIP 39H 5% 1/10W...
  • Page 230 SYMBOL PART NO DESCRIPTION C429 42CA1424 C,CERAMIC 50V 22PF C471 42AA2726 C,CERAMIC 50V 0.01UF C472 430B9064 C,ELEC 50V 4.7UF C473 430B9064 C,ELEC 50V 4.7UF C481 430B9041 C,ELEC 25V 47UF C482 42AA2744 C,CERAMIC 25V 0.1UF C483 430B9032 C,ELEC 16V 470UF C4H1 430B9041 C,ELEC 25V 47UF C4H2...
  • Page 231 SYMBOL PART NO DESCRIPTION C520 42AA1521 C,CHIP CERAMIC 50V 0.01UF C522 42AA1521 C,CHIP CERAMIC 50V 0.01UF C523 42AA1521 C,CHIP CERAMIC 50V 0.01UF C524 42AA1533 C,CERAMIC 25V 0.033UF C52A 42AA2744 C,CERAMIC 25V 0.1UF C52C 430B9041 C,ELEC 25V 47UF C52E 42AA2744 C,CERAMIC 25V 0.1UF C52G 42AA2744 C,CERAMIC 25V 0.1UF...
  • Page 232 SYMBOL PART NO DESCRIPTION C592 430B9553 C,ELEC 250V 2.2UF C593 420C9567 C,CERAMIC 500V 2200PF C595 427F4617 C,FILM 50V 0.022UF C596 430B6065 C,ELEC 50V 10UF C597 430B6041 C,ELEC 25V 47UF C598 42CA1454 C,CERAMIC 50V 390PF C59C 42AA2744 C,CERAMIC 25V 0.1UF C59E 42AA2744 C,CERAMIC 25V 0.1UF C59F...
  • Page 233 SYMBOL PART NO DESCRIPTION C5X2 430B6514 C,ELEC 160V 3.3UF C607 42AA2721 C,CERAMIC 50V 0.1UF C608 42060330 C,CERAMIC 400V 2200PF C609 43109896 C,ELEC 400V 330UF C610 43109896 C,ELEC 400V 330UF C611 428D0225 C,METAL 630V 0.022UF C621 430C9502 C,ELEC 35V 220UF C622 42899196 C,METAL 1.25KV 1000PF 3% C623...
  • Page 234 SYMBOL PART NO DESCRIPTION C703R 433A6148 C,ELEC 16V 100UF C704B 42AA2726 C,CERAMIC 50V 0.01UF C704G 42AA2726 C,CERAMIC 50V 0.01UF C704R 42AA2726 C,CERAMIC 50V 0.01UF C705 428B3513 C,METAL FILM 50V 0.1UF C706 433A6143 C,ELEC 16V 10UF C707 428B3513 C,METAL FILM 50V 0.1UF C708 433A6143 C,ELEC 16V 10UF...
  • Page 235 SYMBOL PART NO DESCRIPTION C729R 428D0097 C,FILM 250V 0.22UF C72AB 42CA1430 C,CERAMIC 50V 39PF C72AG 42CA1430 C,CERAMIC 50V 39PF C72AR 42CA1430 C,CERAMIC 50V 39PF C72EB 42CA1438 C,CERAMIC 50V 82PF C72EG 42CA1438 C,CERAMIC 50V 82PF C72ER 42CA1438 C,CERAMIC 50V 82PF C72F 42AA2744 C,CERAMIC 25V 0.1UF C731...
  • Page 236 SYMBOL PART NO DESCRIPTION C783 430B9552 C,ELEC 250V 1.0UF C791 42AA1505 C,CHIP CERAMIC 50V 470PF C792 42AA1538 C,CERAMIC 25V 0.1UF C793 430C0275 C,ELEC 50V 1.0UF C794 42AA2744 C,CERAMIC 25V 0.1UF C795 430J9184 C,ELEC 16V 100UF C796 430B6029 C,ELEC 16V 100UF C797 42AA2744 C,CERAMIC 25V 0.1UF...
  • Page 237 SYMBOL PART NO DESCRIPTION C816 42AA1509 C,CHIP CERAMIC 50V 1000PF C817 42AA1509 C,CHIP CERAMIC 50V 1000PF C818 42AA1509 C,CHIP CERAMIC 50V 1000PF C852 42CA1428 C,CERAMIC 50V 33PF C853 42CA1428 C,CERAMIC 50V 33PF C854 42AA2744 C,CERAMIC 25V 0.1UF C855 430B8145 C,ELEC 16V 100UF C857 42AA2744 C,CERAMIC 25V 0.1UF...
  • Page 238 SYMBOL PART NO DESCRIPTION C984 430B6101 C,ELEC 100V 47UF C985 420C9563 C,CERAMIC 500V 1000PF C986 430B6065 C,ELEC 50V 10UF C987 430B9098 C,ELEC 100V 10 UF C989 423E2111 C,CERAMIC 500V 10PF 9-33...
  • Page 239 FP1350-1 (B) BLOCK DIAGRAM CRT PWB VIDEO PWB 8.5V 6.2V HEATER CONTOROL HEATER VIDEO FILTER REG. 80.2V VIDEO Only SOG VIDEO VIDEO VIDEO OUTPUT R VIDEO R VIDEO PRE-AMP BUFFER SYNC FILTER SYNC ANALOG SW SHARPNESS 1/2/3 CLAMP/BIAS R OUT OSD MIX DRIVER SYNC...
  • Page 240 for Human Potential...

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